Overview

overview

10

Static

static

10

2024-09-22...de.exe

windows7-x64

9

2024-09-22...de.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    99s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/09/2024, 11:18

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General

  • Target
    2024-09-22_ef8b996e4d7e84c179f8268f3d686195_darkside.exe
  • Size 146KB
  • Sample240922-necsvsxalm
  • SHA256 d582110cd8a31d867e1a1eada4fb726acbbf960bed0aafeec854e455bc53403f
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10
defense_evasiondiscoveryransomwarespywarestealer

Malware Config

Signatures

  • Renames multiple (593) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-22_ef8b996e4d7e84c179f8268f3d686195_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-22_ef8b996e4d7e84c179f8268f3d686195_darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1036
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:2660
    • C:\ProgramData\357.tmp
      "C:\ProgramData\357.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:212
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\357.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1512
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3488
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:628
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{CA792481-376B-43F8-8B56-8D88769936BF}.xps" 133714775176000000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:208

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          LLLLLLLLLLL
          • Path C:\$Recycle.Bin\S-1-5-21-2629364133-3182087385-364449604-1000\LLLLLLLLLLL
          • Size 129B
          • SHA256 ae9536060ad393536b8cc7466d7e1e91cabf93d3710f03a5cb6d3afacdf12953
          • MD5 SHA1 SHA512
          Submit Download

          357.tmp
          • Path C:\ProgramData\357.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
          • Path C:\Users\Admin\AppData\Local\Temp\EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
          • Size 146KB
          • SHA256 b46d6f07e9989a979f6119ecdcdf5aa7bc05a5348a1d07f41f0b23e7384b78a7
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          {2C47496F-BA12-42D3-AFAF-592A81972DE9}
          • Path C:\Users\Admin\AppData\Local\Temp\{2C47496F-BA12-42D3-AFAF-592A81972DE9}
          • Size 4KB
          • SHA256 57044fd393af8b8c6b3337755355b89cb9162a443a32e7455f76ff090b807eb4
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          Open Notebook.onetoc2
          • Path C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
          • Size 4KB
          • SHA256 adcb34c1e13667ab786135ad87f5560ed7bedda5d18c0ee0890524e610d78577
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          iFnyJHFpx.README.txt
          • Path C:\iFnyJHFpx.README.txt
          • Size 638B
          • SHA256 7c750178e9525b4eef587eed36c7040a4806207909e4463a56f33073081b7de5
          • MD5 SHA1 SHA512
          Submit Download

          DDDDDDDDDDD
          • Path F:\$RECYCLE.BIN\S-1-5-21-2629364133-3182087385-364449604-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 18050ae9cb450b3bd15ca838bb870f83d7dd52b0cfed041d9a9bf11ab9e28414
          • MD5 SHA1 SHA512
          Submit Download

          memory/208-2908-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp
          Download

          memory/208-2904-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp
          Download

          memory/208-2907-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp
          Download

          memory/208-2909-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp
          Download

          memory/208-2906-0x00007FFB20A90000-0x00007FFB20AA0000-memory.dmp
          Download

          memory/208-2929-0x00007FFB1E770000-0x00007FFB1E780000-memory.dmp
          Download

          memory/208-2930-0x00007FFB1E770000-0x00007FFB1E780000-memory.dmp
          Download

          memory/1036-2881-0x0000000002D10000-0x0000000002D20000-memory.dmp
          Download

          memory/1036-2880-0x0000000002D10000-0x0000000002D20000-memory.dmp
          Download

          memory/1036-2879-0x0000000002D10000-0x0000000002D20000-memory.dmp
          Download

          memory/1036-2-0x0000000002D10000-0x0000000002D20000-memory.dmp
          Download

          memory/1036-0-0x0000000002D10000-0x0000000002D20000-memory.dmp
          Download

          memory/1036-1-0x0000000002D10000-0x0000000002D20000-memory.dmp
          Download